Cyber Resilience

CVE-2024-21782

Command Injection in F5 Big-Ip Access Policy Manager 15.1.0 – 15.1.9

Published
14 February 2024
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 6.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0018 8th percentile
Risk Priority 47 floored blend · peak EPSS

Summary

CVE-2024-21782 is a medium-severity OS Command Injection (CWE-78) vulnerability in F5 Big-Ip Access Policy Manager. Its CVSS base score is 6.7 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

BIG-IP or BIG-IQ Resource Administrators and Certificate Managers who have access to the secure copy (scp) utility but do not have access to Advanced shell (bash) can execute arbitrary commands with a specially crafted command string. This vulnerability is due…

more

to an incomplete fix for CVE-2020-5873. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-34176Same product: F5 Big-Ip Access Policy Manager
CVE-2025-20029Same product: F5 Big-Ip Access Policy Manager
CVE-2026-42924Same product: F5 Big-Ip Access Policy Manager
CVE-2025-53868Same product: F5 Big-Ip Access Policy Manager
CVE-2024-22093Same product: F5 Big-Ip Access Policy Manager
CVE-2025-23239Same product: F5 Big-Ip Access Policy Manager
CVE-2022-41800Same product: F5 Big-Ip Access Policy Manager
CVE-2022-41622Same product: F5 Big-Ip Access Policy Manager
CVE-2023-28742Same product: F5 Big-Ip Domain Name System
CVE-2024-23979Same product: F5 Big-Ip Access Policy Manager

Affected Assets

f5
big-ip access policy manager
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-iq centralized management
8.0.0 — 8.3.0
f5
big-ip advanced firewall manager
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip analytics
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip application acceleration manager
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip application security manager
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip domain name system
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip fraud protection service
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip global traffic manager
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
f5
big-ip link controller
17.1.0 · 15.1.0 — 15.1.9 · 16.1.0 — 16.1.4
+2 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

Secure engineering principles require proper neutralization of untrusted input before command construction.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References